英语作文《城市交通带来的污染》

【专家解说】：在我国经济较为发达的城市，私人汽车拥有量的高峰逐渐显现。交通污染分两大类，一是噪声污染；二是空气污染。空气污染主要是指一氧化碳，碳氢氧化物和氮氧化合物三类，一氧化碳的危害你知道吧，碳氢氧化物能够引起光化学污染，氮氧化合物是形成酸雨的主要因素之一，它具有强氧化性和酸性。类外，二氧化碳也算是污染物之一，引起温室效应的罪魁祸首。 我们不太可能消除这些现象，但能够减弱。当交通秩序很好的时候，交通冲突也就减少了，鸣喇叭的汽车也就不会很多啦；同时，在好的交通秩序下，汽车也不会频繁的加减速，运行得更为流畅，大量的研究都已经证明了频繁的加减速会加大尾气的排放量，增加空气污染。所以说交通的秩序和流畅程度对于减小交通污染具有很大的帮助。 再者，污染是由汽车产生的，所以要减小污染还得从污染源本身着手。现在所有的汽车都有三元催化剂，这极大地减小了污染物的排放，但是这些催化剂也不可能完完全全地去让所有的污染气体发生转换，因此有必要去寻找更好的污染气体消除方式。其实石油储量已经不多啦，再者电动汽车已经成为未来汽车发展的一个趋势，所以这种气体污染相信在不久的将来将不复存在。对于噪声污染，最好的办法就是提高汽车各个部件之间的精度啦，精度提高了摩擦自然也就减小了啊，噪声也就不断的down,down,down……，但是我们不能够把噪声降到很低很低，不是我们做不到，而是出于安全的考虑。你试想一下，你在大道上走着，突然后面无声无息的串出来一辆汽车，多么的危险啊。所以现在有就有了噪声发生器这个玩意——制造噪声 In our economy more developed city, private car ownership revealed the peak gradually. Traffic pollution is divided into two categories, one is the noise pollution; 2 it is air pollution. Air pollution is mainly refers to carbon monoxide, hydrocarbon oxide and nitric oxide three kinds of, you know, the dangers of carbon monoxide and hydrogen oxide can cause photochemical pollution, nitric oxide is one of the main factors which contribute to acid rain, it has strong oxidizing and acid. The class, carbon dioxide is one of pollutants, cause the greenhouse effect of the culprit. We are not likely to eliminate the phenomenon, but can decrease. When the traffic order are good, traffic conflicts also reduced, blew his horn car won't many la; At the same time, in the good traffic order, the car won't frequent and deceleration, operate more fluent, a large number of studies have proved frequent and deceleration will increase exhaust emissions, increase air pollution. So said the order and degree of traffic flowing to reduce traffic pollution has a lot of help. Moreover, pollution is produced by car, and, therefore, to reduce pollution from pollution sources to itself. Now all cars have three yuan catalyst, it greatly reducing the emissions of pollutants, but the catalyst can't completely to let all the pollution gas conversions, so it is necessary to find better ways to eliminate the polluting gas. In fact oil reserves are numbered la, moreover electric cars have become future a tendency of the development of the car, so the gas pollution believe in the near future will disappear. For noise pollution, the best way is to improve the car parts of it between accuracy, precision increased friction nature also reduced the ah, noise are down, down, down... , but we can not put down to very low noise is low, not we couldn't do it, but because of safety concerns. You just think, you walk on the road, suddenly behind a string of silent out a car, how it's dangerous. So now have had noise generator this stuff--made noise